S120
RESIDENTIAL SINGLE-JET WATER METER
COLD WATER
Product Specification
The S120 is a single-jet water meter that has been designed for very
accurate water measurement. All parts are manufactured by Elster to the
highest specifications and the latest test procedures prove every meter’s
accuracy prior to despatch. The meter is approved to ISO4064 Class B in
the horizontal position, Class A in the vertical position.
Robustness
Main Features
The meter is capable of high flows for a short period of time. The
meter is manufactured from the highest quality materials for
maximum resistance to wear and corrosion. One example of this, is
the jewelled rotor bearings which are used to provide flow
sensitivity and long life. All Elster meters have a mesh filter for
added protection against debris.
Register
The register is super dry and guarantees excellent security through
a snap-fit locking system. The register has 360º rotation, ensuring
easy readability. A copper can register with a glass lens is also
available.
Valuable management information can be obtained via a pulse unit
available on the plastic register version.
Security
Elster meters have a number of security features which protect it
from tampering.



Snap-fit locking register and shroud system;
Anti-fraud ring that will prevent the meter being opened after
installation;
Reliable anti-fraud indication system, which allows tampering to
be detected.

Single-Jet meter Class “B”,
Magnetic transmission;

INMETRO Approval (Brazil
Version);

Excellent wear resistance
and good performance at
low flow rates;

Performance at or above
the required NBR NM 212
and ISO 4064;

Register super dry IP68;

Register versions:
Copper+Glass, Plastic.
Optional

Hot Pin steel Shiel;

Maximum registration
99.999m³;

Customer logo in register;

Pulse Enable reed switch
K=1L / 1P.
Elster Medição de Água S/A
Av. Lincoln Alves dos Santos, 944 - Distrito Industrial ZipCode : 39.404-005 - Montes Claros – MG - Brazil
Phone: +55 38 3690-2200 agua.elster.com.br
Error (%)
Error Loss
Flow (%)
Performance
CLASS B
INMETRO Approval
Qmax ±2%
m³/h
Qn 0,6 m³/h
386/09
1,2
Qt ±2%
l/h
48,0 H
Qmin ±5%
l/h
Starting flow (approximately)
Headloss at maximum flow
Maximum working pressure
Maximum water temperature
Minimum registration
Maximum registration
Pulse Connectivity
l/h
bar
bar
°C
m³
m³
12 H
30,0 V
5,0
0,59
Qn 0,75 m³/h
239/07
1,5
60,0 H
75,0 V
15,0 H / 12 H*
30,0 V
5,0
0,59
10
40
0,00002
9.999 / 99.999*
Magnetic 1L/1P*
Qn 1,5 m³/h
236/07
3,0
120,0 H
150,0 V
30,0 H
40,0 V
10,0
0,8
* Optional
Dimensions
Qn 0,75 / 1,5
Register
A
B
C
DN - D
mm
mm
mm
Inch - mm
Plastic
45º
Ø84
75
131
CopperCan
45º
Ø89
86
155
½’’ ¾’’
½’’
½’’ ¾’’
Plastic
Plane
Ø84
75
139
– 115
– 165
– 190
CopperCan
Plane
Ø84
83
146
Reed Switch Sensor *
IP
68
Vmax
24 VDC
Imax
60 mA
Resistor
100 Ohm
Cable
2 x 26AWG x Ø3,2mm
Cable length
2
Metros
* Supplied separately
Elster Medição de Água S/A
Av. Lincoln Alves dos Santos, 944 - Distrito Industrial ZipCode : 39.404-005 - Montes Claros – MG - Brazil
Phone: +55 38 3690-2200 agua.elster.com.br
Parts List
1
2
3
4
5
6
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8
9
10
11
12
13
14
15
15.1
15.2
Body
Sealing Insert cap
Strainer
Regulating Screw
O'ring (Regulating)
Regulating Plug
Measuring Unit
Pressure plate
Sapphire (Jewel)
Pressure Plate Bush
Magnet
Rotor Spindle
Rotor (Turbine)
Rotor Bush (Turbine Bush)
Chamber Spindle
Measuring Chamber
O'Ring(Chamber Sealing)
Slip Ring (skid ring)
Clamp Ring
Screw Ring
Internal Magnet Protection
Elbow Magnet Protection
Assembled Register
Assembled Shroud
Lid
Shroud
About Elster Group
A world leader in advanced metering infrastructure, integrated metering, and utilisation solutions to the gas, electricity and water industries, Elster’s systems and
solutions reflect over 170 years of knowledge and experience in measuring precious resources and energy. Elster provides solutions and advanced technologies to
help utilities more easily, efficiently and reliably obtain and use advanced metering intelligence to improvecustomer service, enhance operational efficiency, and
increase customer benefits. Elster’s AMI solutions enable utilities to cost-effectively deliver, manage, and conserve the life-essential resources of gas, electricity, and
water. Elster has over 7500 staff and operations in 38 countries in North and South America, Europe, and Asia.
For additional information, visit agua.elster.com.br
Elster Medição de Água S/A
Av. Lincoln Alves dos Santos, 944 - Distrito Industrial ZipCode : 39.404-005 - Montes Claros – MG - Brazil
Phone: +55 38 3690-2200 agua.elster.com.br